Fish Identification (Test #3)

Question 1

How many endemic species of butterflyfish are there?

Answer 1

There are 5

Question 2

How do butterflyfish group up

Answer 2

Monogamous Bond: Two fishes stay together

Question 3

Did Hawaiians eat the butterflyfish?

Answer 3

No, they only ate them during times of famine

Question 4

What do butterflyfish eat?

Answer 4

They eat live coral by using their pointed mouths like a tweezer for the polyps

Question 5

What is the general shape of the butterflyfish?

Answer 5

Laterally compressed and disc-shaped.

Question 6

What kind of anti-predation strategies do the butterfly fish use?

Answer 6

Disruptive Coloration: A lot of colors and contrast to confuse predators

Question 7

Can Trumpetfish bend?

Answer 7

No, they are so stiff they nearly cannot bend

Question 8

What is the general characteristic of trumpetfish and cornetfish?

Answer 8

They have elongate bodies

Question 9

What is the difference between trumpetfish and cornetfish?

Answer 9

The trumpetfish cannot bend with like a paddle, the cornetfish kind of slink along with their thin caudal fins

Question 10

What is a Piscivore? (Trumpetfish and Cornetfish)

Answer 10

Fish who consume other fish in a vacuum-like fashion.

Question 11

What is shadow stalking?

Answer 11

Trumpetfish specific: They change colors to copy non-predator fishes. They scavenge after larger fish or eat herbivores

Question 12

What do damselfish eat?

Answer 12

They eat algae and zooplankton. Sometimes they partner with sea anemonies.

Question 13

Why are damselfish territorial?

Answer 13

They protect their batch of algae, harems, and nests.

Question 14

Why should you avoid getting too close to a damselfish nest?

Answer 14

They protect their territory. If you scare them, other fishes will swoop in until they come back.

Question 15

What is nuptial coloration?

Answer 15

They change or intensify color when they are ready to mate (damselfish)

Question 16

Why is a false eyespot a form of misdirection?

Answer 16

They misdirect predators by leading them toward less vital areas. It also disrupts depth and distance judgments of predators

Question 17

What do Hawaiian Gregory (damselfish) do to identify their algae patches?

Answer 17

They are evenly spaced out and confront intruders

Question 18

Why do Hawaiian Dascyllus (damselfish) hover around or defend antler coral?

Answer 18

They are defending their algae patches.

Question 19

What is the difference between filefishes and triggerfishes?

Answer 19

Filefish have long dorsal spine above their eyes and no scales (leathery skin).

Question 20

What do filefish eat?

Answer 20

They eat a variety of invertebrates with their sharp incisiform teeth.

Question 21

What is the defensive characteristics of a triggerfish?

Answer 21

They have hard body-armor fins, spiny dorsal fins, spiny caudal fins and sharp teeth.

Question 22

What is the difference between the unicornfish and tangs?

Answer 22

Unicornfish have a pair of forward curved spines on the side of the back fin (caudal penduncle)

Question 23

Unicornfish, Surgeonfish, and Tangs eat what?

Answer 23

Algae and Zooplankton

Question 24

What is warning coloration?

Answer 24

Color patterns that warm predators. (The Orange Unicornfish has highlighted spines)

Question 25

What is flash coloration? Where is this common?

Answer 25

This is common in schools of striped fish. The quick movement of these lines creates a blur.

Question 26

What is the actual name of angel fish?

Answer 26

Moorish Idols

Question 27

What are the physical characteristics of the goatfish?

Answer 27

2 separate dorsal fins and mouth is slightly underslung

Question 28

Goatfish feed by what method?

Answer 28

They probe sediment with their barbels and scoop food up into their mouths.

Question 29

Where are hawkfishes usually found?

Answer 29

They are seen perched on reef or live coral and lurch out to eat unsuspecting fish.

Question 30

What is the general characteristics of the lizardfish

Answer 30

They have a small spineless dorsal fin and a stubby adipose fin.

Question 31

What fish have bony plates in their throat?

Answer 31

Parrotfishes

Question 32

What are the two types of parrotfishes?

Answer 32

Parrotfishes either have sharp beak like mouths or cobblestone-like teeth.

Question 33

What fish lack scales and pelvic fins?

Answer 33

Pufferfishs and Porcupinefish

Question 34

What do pufferfishes and porcupinefishes eat?

Answer 34

They are carnivorous and eat anything available. They prefer shellfish

Question 35

What is batesian mimicry and what fish uses this technique?

Answer 35

When a toxic, dangerous fish is mimicked by a fish without the same defense. The balck saddled filefish copies the black saddled toby

Question 36

Wrasses have what kind of reproductive system?

Answer 36

Sequential hermaphrodites, they start off as females and turn into males who establish harems.

Question 37

What fishes make a cocoon out of mucus at night?

Answer 37

Wrasses, they do this to deter predatory fishes that hunt based on smell. The mucus also supposedly taste bad.